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re: TS Elsa - Heading off to the NE, Then Shut the Tropics Down for a Couple of Weeks

Posted on 7/1/21 at 10:18 am to
Posted by phutureisyic
New Orleans
Member since Aug 2016
3450 posts
Posted on 7/1/21 at 10:18 am to
RIP Lake Charles
Posted by doubleb
Baton Rouge
Member since Aug 2006
40430 posts
Posted on 7/1/21 at 10:28 am to
The rule of thumb; a weaker system will go more west with the low level flow and a stronger storm will feel the upper level flow more.
Currently the storm is rapidly moving west keeping it weak. If this continues it could miss the islands and be more of a GOM threat.
Strengthening in the short term might be our friend.
Posted by rds dc
Member since Jun 2008
20622 posts
Posted on 7/1/21 at 10:41 am to
quote:

The rule of thumb; a weaker system will go more west with the low level flow and a stronger storm will feel the upper level flow more.
Currently the storm is rapidly moving west keeping it weak. If this continues it could miss the islands and be more of a GOM threat.
Strengthening in the short term might be our friend.


Typically this holds true but currently models show a setup in a couple of days that would pull a weaker system quickly off to the north while a stronger system would move slower and more westward.
Posted by MrLSU
Yellowstone, Val d'isere
Member since Jan 2004
28354 posts
Posted on 7/1/21 at 10:45 am to
sigh

NB4 Punta Cana
NB4 Florida canceling a football game
NB4 Stone Cold gif
NB4 Lootie

Looks like you missed an important one.

Posted by doubleb
Baton Rouge
Member since Aug 2006
40430 posts
Posted on 7/1/21 at 10:58 am to
quote:

Typically this holds true but currently models show a setup in a couple of days that would pull a weaker system quickly off to the north while a stronger system would move slower and more westward.


So the upper level winds are more out of the east and the low level flow is more out of the south?
Posted by dukke v
PLUTO
Member since Jul 2006
214074 posts
Posted on 7/1/21 at 11:00 am to
Problem Kenny?????
Posted by Oates Mustache
Member since Oct 2011
24411 posts
Posted on 7/1/21 at 11:02 am to
quote:

Problem


Yes, you are a problem. Lsu Coyote will take care of you though.


GFS is running.
Posted by Cole Beer
Baton Rouge
Member since Aug 2008
4744 posts
Posted on 7/1/21 at 11:05 am to
that's one of the best memes we've had in a long while
Posted by Oates Mustache
Member since Oct 2011
24411 posts
Posted on 7/1/21 at 11:09 am to
GFS finding that weakness in the ridge just south of the tip of Florida at 114 hours. It's a stronger system too from last run.
This post was edited on 7/1/21 at 11:10 am
Posted by The Dozer
H-Town
Member since Feb 2017
5562 posts
Posted on 7/1/21 at 11:09 am to
Are 95 and 97 one storm now? All the updates I saw this morning just showing Elsa, not 2 storms.
Posted by Oates Mustache
Member since Oct 2011
24411 posts
Posted on 7/1/21 at 11:12 am to
The GFS has been one consistent beast of a model with this system. Not any huge changes so far from last run or even the last several runs. It starts hooking east at 132 hours toward the western Central Florida coast.
Posted by rds dc
Member since Jun 2008
20622 posts
Posted on 7/1/21 at 11:13 am to
quote:



So the upper level winds are more out of the east and the low level flow is more out of the south?


Essentially.

Then, if the system is stronger and more SW like the GFS is showing the setup over the Gulf looks tricky. The Euro has a ridge over the Gulf but no system. The GFS has a system moving into the Gulf but has a PV streamer (trough) in place. Theoretically, the outflow from a stronger system could fracture the PV streamer resulting in an ULL low towards Texas and a ridge over the Gulf.
Posted by Hangit
The Green Swamp
Member since Aug 2014
43570 posts
Posted on 7/1/21 at 11:15 am to
quote:

It starts hooking east at 132 hours toward the western Central Florida coast.



Like Charlie? Maybe if we can get Liz to dump tons of dry ice in the gulf...
Posted by DVinBR
Member since Jan 2013
14738 posts
Posted on 7/1/21 at 11:17 am to
weaker storm > farther west

stronger storm > farther east
Posted by Oates Mustache
Member since Oct 2011
24411 posts
Posted on 7/1/21 at 11:18 am to
At this point it looks like the GFS wants to take it just north of Tampa at around 980mb (threshold of a Cat 1).
Posted by Prominentwon
LSU, McNeese St. Fan
Member since Jan 2005
94373 posts
Posted on 7/1/21 at 11:18 am to
quote:

Have you looked at the GFS ensembles? That's a pretty significant shift west, with a much bigger cluster over the Louisiana coast now.


Random Facebook Hurricane Page, is that you ?
Posted by Oates Mustache
Member since Oct 2011
24411 posts
Posted on 7/1/21 at 11:20 am to
That's factual. The latest ensembles cluster a good bit over Louisiana, a change from the last ensemble run. I induced no fear mongering like "Tropical Storm Central".

Go take a look at that one BTW, it's a real piece of work.

This post was edited on 7/1/21 at 11:23 am
Posted by A Smoke Break
Lafayette
Member since Nov 2018
2175 posts
Posted on 7/1/21 at 11:24 am to
quote:

The latest ensembles cluster a good bit over Louisiana


Posted by LegendInMyMind
Member since Apr 2019
67168 posts
Posted on 7/1/21 at 11:27 am to
GFS FL landfall is a little farther North than the trend yesterday. It also continues to thread the needle and miss most land interaction with Haiti/DR and Jamaica. Last two runs have taken it farther West over Cuba. Strength trend is more or less the same.

If you want consistency out of a model, the GFS has given it over the past 2 and half days. Now, let's see if it will be consistently right or consistently wrong.
This post was edited on 7/1/21 at 11:30 am
Posted by Prominentwon
LSU, McNeese St. Fan
Member since Jan 2005
94373 posts
Posted on 7/1/21 at 11:29 am to
quote:

I induced no fear mongering like "Tropical Storm Central".


I hate that guy just as much as our local meteorologists do.

What’s the strategy here? “Oh, let’s just post the most heinous model I can find and try to convince people I’m not about hype or followers!”
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